Whenever I feel that I have problems out of control and find myself filled with negative thoughts I go for a walk in sun light and fresh air. Imagine that you are throwing the negative energy you have inside. Raise you head high to feel the sun light in your face and get fresh air in. Then run to break the stress. After that try to think and find solutions for your problems. Even if you didn't find a solution you will find yourself have the power to face it.
Choose a sunny calm place.